Will President Trump's Republican primary wins undermine their midterm chances?

This week President Trump demonstrated that his grip over the Republican party is tighter than ever.In Republican primaries, Donald Trump's hand-picked candidate Ed Gallrein defeated seven-times elected incumbent Thomas Massie in Kentucky.While in Washington, the Justice Department granted President Trump and his family immunity from inquiries into their tax affairs.The concession came as Trump settled his $10 billion lawsuit against the tax office with a deal that establishes a $1.8 billion fund that could be used to pay January 6 Capitol rioters.